FR1508671A - Photoelectric detector - Google Patents

Photoelectric detector

Info

Publication number
FR1508671A
FR1508671A FR91835A FR91835A FR1508671A FR 1508671 A FR1508671 A FR 1508671A FR 91835 A FR91835 A FR 91835A FR 91835 A FR91835 A FR 91835A FR 1508671 A FR1508671 A FR 1508671A
Authority
FR
France
Prior art keywords
photoelectric detector
photoelectric
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR91835A
Other languages
French (fr)
Inventor
Paul Nash
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US536741A external-priority patent/US3334239A/en
Application filed filed Critical
Application granted granted Critical
Publication of FR1508671A publication Critical patent/FR1508671A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Controlling Sheets Or Webs (AREA)
FR91835A 1966-03-23 1967-01-19 Photoelectric detector Expired FR1508671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US536741A US3334239A (en) 1962-06-22 1966-03-23 Pivotal light-gate for detecting surface elevations in sheet materials

Publications (1)

Publication Number Publication Date
FR1508671A true FR1508671A (en) 1968-01-05

Family

ID=24139748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR91835A Expired FR1508671A (en) 1966-03-23 1967-01-19 Photoelectric detector

Country Status (4)

Country Link
DE (1) DE1648630B1 (en)
FR (1) FR1508671A (en)
GB (1) GB1128830A (en)
SE (1) SE316927B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112047166A (en) * 2020-10-19 2020-12-08 诸暨市澳速机械设计工作室 Sensitivity-adjustable film wrinkle detection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166700A (en) * 1977-06-24 1979-09-04 Research Technology, Inc. Film thickness detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112047166A (en) * 2020-10-19 2020-12-08 诸暨市澳速机械设计工作室 Sensitivity-adjustable film wrinkle detection device

Also Published As

Publication number Publication date
SE316927B (en) 1969-11-03
DE1648630B1 (en) 1971-03-04
GB1128830A (en) 1968-10-02

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